A very good entry level read on the Heidelberg Catechism. Would be good to use for study in a high school class, with the average church member who does not have a lot of theological background, or a read aloud and discussion for family devotions. DeYoung has good understanding of basic reformed theology. He also has a great concern that his people grow in holiness. Both the theology and the piety are held in balance throughout the book. He keeps the chapters short and to the point, which makes it easily accessible. He does not dive in deep, but what he gives you is solid and gets you headed in the right direction.